JVC GYHD100U 24p or 23.976 at DVinfo.net

Chris Cherrett · September 21st, 2007, 03:12 AM

I run a JVC GYHD100U

I supplied some footage for a project that required the frames be dumped and worked off of in that regard. I am being told that the footage supplied is not 24p but it is 23.976.

Is it possible that the footage coming out of the 100U is 23.976 or has something happened while converting in Vagas?

Thanks

Steven Thomas · September 21st, 2007, 03:34 AM

Graeme Nattress has the info you need here: http://www.dvinfo.net/conf/showpost....38&postcount=6

Chris Cherrett · September 21st, 2007, 04:00 AM

Hi Steve,

Thanks for the reply. I had read on the net similar things. Does that mean that editing between 24p and 23.976p is all the same?

Would it cause frames to not line up in the end. We are motion tracking the shot so any frames that are out will cause sliding and jitter in the track.

Also does this mean that the camera is true 24p it is just editing systems will convert it to 23.976?

Thanks

Steve Oakley · September 23rd, 2007, 05:56 PM

the camera really runs at 23.976. working as designed. PITA when using HMI's on magnetic ballasts & flo lights also on mag ballasts as you will get flicker and have to shutter at 1/60th as the camera doesn't have a 1/40th shutter which would be closer in look to the default 1/48th. 1/60th can increase judder to objectionable levels.

September 21st, 2007, 03:12 AM	#1
Chris Cherrett Regular Crew Join Date: Jun 2007 Location: Alberta Canada Posts: 34	JVC GYHD100U 24p or 23.976 I run a JVC GYHD100U I supplied some footage for a project that required the frames be dumped and worked off of in that regard. I am being told that the footage supplied is not 24p but it is 23.976. Is it possible that the footage coming out of the 100U is 23.976 or has something happened while converting in Vagas? Thanks

September 21st, 2007, 03:34 AM	#2
Steven Thomas Trustee Join Date: Sep 2005 Location: Gilbert, AZ Posts: 1,896	Graeme Nattress has the info you need here: http://www.dvinfo.net/conf/showpost....38&postcount=6

September 21st, 2007, 04:00 AM	#3
Chris Cherrett Regular Crew Join Date: Jun 2007 Location: Alberta Canada Posts: 34	Hi Steve, Thanks for the reply. I had read on the net similar things. Does that mean that editing between 24p and 23.976p is all the same? Would it cause frames to not line up in the end. We are motion tracking the shot so any frames that are out will cause sliding and jitter in the track. Also does this mean that the camera is true 24p it is just editing systems will convert it to 23.976? Thanks

September 23rd, 2007, 05:56 PM	#4
Steve Oakley Trustee Join Date: Apr 2006 Location: United States Posts: 1,158	the camera really runs at 23.976. working as designed. PITA when using HMI's on magnetic ballasts & flo lights also on mag ballasts as you will get flicker and have to shutter at 1/60th as the camera doesn't have a 1/40th shutter which would be closer in look to the default 1/48th. 1/60th can increase judder to objectionable levels.